Title

Silicon Carbide-Based Remote Wireless Optical Pressure Sensor

Keywords

Optical sensors; Pressure sensors

Abstract

Proposed is a silicon carbide (SiC) weak-lensing-effect-based wireless optical sensor that allows safe, repeatable, and accurate pressure measurement suitable for harsh environments. This completely passive front-end sensor design uses a remoted free-space optical beam that targets a single crystal SiC chip fitted as an optical window within a pressure capsule. With increasing differential capsule pressure, the SiC chip forms a weak convex mirror with a changing focal length. By monitoring the chip reflected light beam magnification, pressure in the capsule is determined. Using a 633-nm wavelength laser beam, the proposed sensor is experimentally tested at room temperature for 0- to 600-psi (0-41 atm) differential pressures and a remoting distance of 2.5 m. © 2007 IEEE.

Publication Date

4-1-2007

Publication Title

IEEE Photonics Technology Letters

Volume

19

Issue

7

Number of Pages

504-506

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/LPT.2007.893752

Socpus ID

34047242964 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34047242964

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